Atelier Escha & Logy: Alchemists of the Dusk Sky is the fifteenth official game in Gust's fantasy RPG series. Set four years after the events of Atelier Ayesha: The Alchemist of Dusk, Atelier Escha & Logy takes players west of the Twilight Land to the frontier town of Colseit where two budding alchemists are recruited to investigate the cause of a growing environmental blight.
Players choose to assume the role of either Escha or Logy for the duration of the playthrough and while both characters will experience the same story and gameplay, each will offer unique rewards upon completion of the main story. Gameplay revolves around meeting the R&D department's goals within a set timeframe each in-game month, and this entails exploring the world map, gathering components on the field, battling enemies in turn-based combat, and of course synthesizing items in the alchemy lab.
The game also received an anime adaptation in April 2014 starring the same characters.